We use our hands constantly to interact with things: pick them up, move them, transform their shape, or activate
them in some way. In the same unconscious way, we gesticulate in communicating fundamental ideas: ‘stop’,
‘come closer’, ‘over there’, ‘no’, ‘agreed’, and so on. Gestures are thus a natural and intuitive form of both
interaction and communication. Gestures and gesture recognition are terms increasingly encountered in discussions
of human-computer interaction. We present a tool created for human-computer interaction based on hand gestures.
The underlying algorithm utilizes only computer-vision techniques. The tool is able to recognize in real time six
different hand gestures, captured using a webcam. Experiments conducted to evaluate the system performance are
reported.